RedHat Linux 7安装CentOS 7 yum源的安装步骤

由于Red HatEnterprise Linux 7 的更新包只对注册的用户生效，所以需要自己手动更改成CentOS的更新包，CentOS几乎和RedHat是一样的，所以无需担心软件包是否可安装，下面是安装步骤。

# 删除redhat自带的yum包

rpm -qa|grep yum|xargs rpm -e --nodeps

# 注意:单个的安装包可能会依赖其它包(例如yum和yum-fastestmirror会相互依赖)，所以我们可以把所有这些包放在一起，用一行命令将它们同时安装即可：

rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm

rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm yum-3.4.3-150.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm

#不报错yum包下载

#测试安装是否正常;

[root@localhost ~]# yum -y install lftp

Loaded plugins: fastestmirror, product-id, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

base | 3.6 kB 00:00:00

extras | 3.4 kB 00:00:00

updates | 3.4 kB 00:00:00

(1/4): extras/x86_64/primary_db | 139 kB 00:00:00

(2/4): base/x86_64/group_gz | 155 kB 00:00:00

(3/4): updates/x86_64/primary_db | 3.9 MB 00:00:01

(4/4): base/x86_64/primary_db | 5.6 MB 00:00:02

Determining fastest mirrors

Resolving Dependencies

--> Running transaction check

---> Package lftp.x86_64 0:4.4.8-8.el7_3.2 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================================================

Package Arch Version Repository Size

=======================================================================================================================

Installing:

lftp x86_64 4.4.8-8.el7_3.2 updates 751 k

Transaction Summary

=======================================================================================================================

Install 1 Package

~~~~~此处省略安装输出内容~~~~

Installed:

lftp.x86_64 0:4.4.8-8.el7_3.2

Complete!

到这里安装完成，以后安装所需包，可以不用本地yum源了，直接使用网络yum源